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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 16 — Aug. 15, 2009
  • pp: 2474–2476

Fabry–Perot refractometer based on an end-of-fiber polymer tip

O. Frazão, P. Caldas, J. L. Santos, P. V. S. Marques, C. Turck, D. J. Lougnot, and O. Soppera  »View Author Affiliations

Optics Letters, Vol. 34, Issue 16, pp. 2474-2476 (2009)

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A micrometric Fabry–Perot refractometer based on an end-of-fiber polymer tip is proposed. The fiber tip, with a length of 36 μ m , was fabricated by self-guiding photopolymerization. The two-wave interferometric operation was achieved by combining the light waves generated at the interface between the single-mode fiber and the polymer tip, and at the fiber tip end (Fresnel reflection). The Fabry–Perot interferometer is coherence addressed and heterodyne interrogated, resulting into a liquid refractive index resolution of 7.5 × 10 4 .

© 2009 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: May 26, 2009
Revised Manuscript: June 19, 2009
Manuscript Accepted: July 6, 2009
Published: August 11, 2009

O. Frazão, P. Caldas, J. L. Santos, P. V. S. Marques, C. Turck, D. J. Lougnot, and O. Soppera, "Fabry-Perot refractometer based on an end-of-fiber polymer tip," Opt. Lett. 34, 2474-2476 (2009)

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